Fix for Windows 10 Fall Creators Update

In October 2017, Microsoft rolled out Windows 10 Fall Creators update, release 1709. As with any update, there were some problems and some unintended consequences. One change was how the Windows memory manager works, which caused a problem for ExtendSim 9 and earlier such that it could hang up or crash on launch.

If you are using ExtendSim 9 or earlier and are experiencing this problem, resolve the conflict with Windows 10 Fall Creators update by either:

Download and Save the "ExtendSim-Win10FCUfix.zip" file, then decompress it to reveal "asimagin.dll". Copy this DLL into the folder "Program Files (x86)/ExtendSim" where it will replace the existing "asimagin.dll". Note: If you don't get a message that it's replacing the DLL, you're in the wrong folder. Then, restart ExtendSim.